You can add Plumsail Forms (Public or SharePoint) to a tab in a channel or chat.
Go to a channel or group chat and click Add a tab:
Find the Plumsail Forms app, click on it, and follow the guidelines:
Once you add the Plumsail Forms app to the tab, you will see the configuration screen. Select the form you want to display: Public or SharePoint:
Open the Public Web form designer, copy the Form ID from the designer URL, and paste it into the Form ID property of the Plumsail Forms app in Microsoft Teams: